We obtained fifty-two recall data when the titles of twenty well-known Japanese songs that most Japanese people learn in school were given. Song memory is based on the associative chaining of units of melody and lyrics. The parts found to be well memorized were the beginning of the songs, parts that share words with the titles, and the end of the songs. We found various kinds of errors in the recall of song lyrics, which we classified into four groups: song confusion, lyrics confusion, word construction, and misused characters. The primary constraints on word construction are the number of syllables, vowels, parts of speech, and syntactic contexts. Word construction is based on rationalization that transfers things reasonable and natural to information receivers. We found some interesting errors that change the image of the original song lyrics. Based on these findings, we present a model for recalling songs from a title and a model of error recall in Japanese songs.